The HPLC Direct Injection module is part of the FREESTYLE automatic sample preparation system. It enables complete automation from the raw extract to the chromatogram without manual intermediate steps while also achieving outstanding results via online injection into any LC system. This allows samples to be processed overnight or at the weekend without supervision. The finished chromatograms are available the next morning.
Using the FREESTYLE system, finished samples can be injected into the HPLC via the Direct Injection module by means of sample loop overfilling, whereby the injection volume is parametrisable. The filling of other aliquots is also possible.
The use of the HPLC Direct Injection module eliminates the need for an HPLC autosampler; this function is performed by the FREESTYLE system, which is compatible with any HPLC system. This means that a fully automated process, from the raw extract to the chromatogram, can be performed reliably without supervision via the FREESTYLE system.
The module contains ten coolable positions for the loading of standards, optionally from 1 mL or 4 mL vials.
The size of the sample loop is variable; a 20 µL sample loop made from stainless steel (SST) is included in delivery as standard.